Gantt chart is also called bar chart and bar chart. Show the internal relationship between project, schedule and other time-related system progress and time through histogram. Named after the patron, Mr. Henry L. Gant.

Gantt chart contains the following three meanings:

1. Display activities in the form of graphs or tables;

2. General method for displaying progress;

3. The actual calendar day and duration should be included in the construction, and weekends and holidays should not be included in the schedule.

Gantt chart is simple, eye-catching and easy to compile, and is widely used in enterprise management. Gantt chart can be divided into five forms according to different contents: plan chart, load chart, machine idle chart, personnel idle chart and schedule plan.